Question 1

A molecule containing a central atom with sp hybridization has a ________ electron geometry.

Accepted Answer

A)  linear
B)  trigonal bipyramidal
C)  trigonal planar
D)  tetrahedral
E)  bent

Question 2

Explain why oil and water do not mix.

Accepted Answer

Water molecules are ...

Question 3

What is the molecular geometry of NCl3?

Accepted Answer

A)  T-shaped
B)  tetrahedral
C)  trigonal planar
D)  trigonal pyramidal

Question 4

Match the following.

-sp3d2

Accepted Answer

A)  tetrahedral
B)  nonpolar, but contains a polar covalent bond
C)  sp hybridized central atom
D)  trigonal bipyramidal
E)  trigonal planarF) polarG) linearH) seesaw molecular geometryI) octahedralJ) octahedral electron geometryK) polar, but contains no polar bondsL) sp2 hybridized central atom

Question 5

Determine the molecular geometry for the molecule SBr2.

Accepted Answer

A)  Trigonal pyramidal
B)  Trigonal planar
C)  Tetrahedral
D)  T-shaped
E)  Bent

Question 6

Determine the electron geometry (eg) and molecular geometry (mg) of XeF4.

Accepted Answer

A)  eg = tetrahedral, mg = tetrahedral
B)  eg = linear, mg = linear
C)  eg = tetrahedral, mg = bent
D)  eg = trigonal bipyramidal, mg = tetrahedral
E)  eg = octahedral, mg = square planar

Question 7

Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF6.

Accepted Answer

A)  eg = trigonal bipyramidal, mg = trigonal bipyramidal, nonpolar
B)  eg = tetrahedral, mg = tetrahedral, polar
C)  eg = trigonal bipyramidal, mg = seesaw, polar
D)  eg = octahedral, mg = trigonal bipyramidal, nonpolar
E)  eg = octahedral, mg = octahedral, nonpolar

Question 8

The orbital hybridization on the carbon atoms in C2H2  is ________.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d2

Question 9

Using the VSEPR model, the molecular geometry of the central atom in XeF2 is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  bent
E)  trigonal pyramidal

Question 10

Give the approximate bond angle for a molecule with octahedral electron geometry and square planar molecular geometry.

Accepted Answer

A)  90°
B)  180°
C)  >120°
D)  
E)  <120°

Question 11

Use the molecular orbital diagram shown to determine which of the following is most stable. 2 B) F22⁺ C) Ne22⁺ D) O22⁺ E) F22⁻" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  F2
B)  F22⁺
C)  Ne22⁺
D)  O22⁺
E)  F22⁻

Question 12

The hybrid orbital set used by the central atom in NCl3 is ________.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2

Question 13

Give the approximate bond angle for a molecule with trigonal bipyramidal electron geometry and seesaw molecular geometry.

Accepted Answer

A)  
B)  120° (equatorial) , 
C)  
D)  120° (equatorial) , 90° (axial) 
E)  <120° (equatorial) , <90° (axial)

Question 14

Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain?

Accepted Answer

A)  7 sigma, 1 pi
B)  8 sigma, 0 pi
C)  6 sigma, 2 pi
D)  10 sigma, 0 pi
E)  8 sigma, 2 pi

Question 15

Draw the Lewis structure for OF2. What is the hybridization on the O atom?

Accepted Answer

A)  sp
B)  sp3
C)  sp2
D)  sp3d
E)  sp3d2

Question 16

Give the approximate bond angle for a molecule with trigonal planar electron geometry and bent molecular geometry.

Accepted Answer

A)  
B)  90°
C)  
D)  
E)  120°

Question 17

Use the molecular orbital diagram shown to determine which of the following is least stable. 2 B) F22⁺ C) Ne22⁺ D) O22⁺ E) F21⁻" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  F2
B)  F22⁺
C)  Ne22⁺
D)  O22⁺
E)  F21⁻

Question 18

Using the VSEPR model, the electron-domain geometry of the central atom in SF4 is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  trigonal bipyramidal
E)  octahedral

Question 19

In molecular orbital theory the acronym LCAO stands for

Accepted Answer

A)  linear combination of atomic orbitals.
B)  lowest combined atomic orbitals.
C)  least consumed advanced orientation.
D)  linearly created available orbital.
E)  It has no meaning.

Question 20

How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeCl6

Accepted Answer

A)  1
B)  4
C)  2
D)  3
E)  0

Exam 10: Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

The hybrid orbital set used by the central atom in NCl3 is ________.

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Give the approximate bond angle for a molecule with trigonal planar electron geometry and bent molecular geometry.

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Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF6.

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Determine the molecular geometry for the molecule SBr2.

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Using the VSEPR model, the electron-domain geometry of the central atom in SF4 is ________.

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Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain?

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Determine the electron geometry (eg) and molecular geometry (mg) of XeF4.

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Give the approximate bond angle for a molecule with trigonal bipyramidal electron geometry and seesaw molecular geometry.

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Using the VSEPR model, the molecular geometry of the central atom in XeF2 is ________.

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The orbital hybridization on the carbon atoms in C2H2 is ________.

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In molecular orbital theory the acronym LCAO stands for

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Use the molecular orbital diagram shown to determine which of the following is least stable.

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Explain why oil and water do not mix.

Correct AnswerverifiedWater molecules are ...View AnswerShow Answer

Give the approximate bond angle for a molecule with octahedral electron geometry and square planar molecular geometry.

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Draw the Lewis structure for OF2. What is the hybridization on the O atom?

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What is the molecular geometry of NCl3?

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How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeCl6

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Use the molecular orbital diagram shown to determine which of the following is most stable.

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Match the following. -sp3d2

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A molecule containing a central atom with sp hybridization has a ________ electron geometry.

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The hybrid orbital set used by the central atom in NCl₃ is ________.

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Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF₆.

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Determine the molecular geometry for the molecule SBr₂.

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Using the VSEPR model, the electron-domain geometry of the central atom in SF₄ is ________.

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Draw the Lewis structure for the molecule C₃H₄. How many sigma and pi bonds does it contain?

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Determine the electron geometry (eg) and molecular geometry (mg) of XeF₄.

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Using the VSEPR model, the molecular geometry of the central atom in XeF₂ is ________.

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The orbital hybridization on the carbon atoms in C₂H₂ is ________.

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Water molecules are ...
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Draw the Lewis structure for OF₂. What is the hybridization on the O atom?

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What is the molecular geometry of NCl₃?

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How many of the following molecules are polar? XeO₂ SiCl₂Br₂ C₂Br₂ SeCl₆

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Match the following. -sp³d²

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